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"All the CO2 that is produced by burning one liter of oil can be sequestered by less than one liter of olivine." [1]. Given that formulation I assume that the
by splittingTimes 5y ago
"All the CO2 that is produced by burning one liter of oil can be sequestered by less than one liter of olivine." [1].
Given that formulation I assume that the amount of olivine needed is the same order of magnitude as the 1 liter of oil to produce the CO2.
The world is consuming 97 Mio barrels of oil per day [2]. I doubt we can mine that amount of olivine on a daily basis. Is it even available in that quantity?
How is olivine considered an adequate option to reduce the CO2 in the atmosphere?
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[1] that Wikipedia article above.
[2] https://www.worldometers.info/oil/ https://www.worldometers.info/oil/
- dEnigma 5y ago"The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface,[...]". This sentence, also from that same Wikipedia article, seems to suggest that availability wouldn't be the problem. But, whether the whole process is practical/reasonable, is another question entirely.
- floatrock 5y agoWe can muster whatever we want if there's sufficient need/desire. In energy-tech, a useful metric is energy-return-on-energy-investment -- a saudi oil well returns 40 units of energy for each unit of energy required for extraction, tar sands are something like 3:1, solar panels are something like 5:1. Taking that mindset, what's the ratio of CO2-sequested-for-CO2-required-to-mine? Yes, we can get better numbers if we electrify all the heavy machinery and power it with solar, but given that heavy mining trucks are largely fossil fuel powered, where are we today?